using System;
using System.Collections.Generic;
using System.Text;


namespace Schleife_in_CSharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int facultaet = 1;
            for (int i = 5; i >= 1; i--)
            {
                facultaet = facultaet * i;
            }
            Console.WriteLine(facultaet);
            Console.ReadLine();
        }
    }  
}